Chapter 26 - RNA Metabolism Focus of this chapter is transcription Three main types of RNA (1) Transfer RNA (tRNA) •Carries amino acids to translation machinery •Very stable molecules (2) Ribosomal RNA (rRNA) •Makes up much of the ribosome •Very stable, majority of cellular RNA (3) Messenger RNA (mRNA) •Encodes message from DNA to ribosomes • Rapidly degraded by nucleases There are many other RNAs: - genome of some viruses
Chapter 26 - RNA Metabolism. Focus of this chapter is transcription Three main types of RNA. (1) Transfer RNA (tRNA) Carries amino acids to translation machinery Very stable molecules (2) Ribosomal RNA (rRNA) Makes up much of the ribosome Very stable, majority of cellular RNA - PowerPoint PPT Presentation
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Chapter 26 - RNA Metabolism
Focus of this chapter is transcription
Three main types of RNA
(1) Transfer RNA (tRNA)•Carries amino acids to translation machinery•Very stable molecules
(2) Ribosomal RNA (rRNA) •Makes up much of the ribosome•Very stable, majority of cellular RNA
(3) Messenger RNA (mRNA) •Encodes message from DNA to ribosomes•Rapidly degraded by nucleases
There are many other RNAs:- genome of some viruses- specialized catalysts- regulatory functions